Improved instrument for testing oils



,To cllibwnrttmay ccncernfi- A y Be itlrnown thatLInfrnn VANDERWEYD,M. eD., ofthe city, county, and'State of NewYork, have in- 1 liltheitofimpossible to them;

V i, "PETER VANDER WEYDn-OF =New Yoan, N.

renfermant.104,798, dared Jantes, 187,0; mama .ma c, ism,

l Y, renversevini msrnrmn'nr ron TESTING-ores.

ScheduleA referred 'to in these Letten Paitentuid making o( thefsaina.

,vented'a new, andimprved Method of Testing' i Gils e for'urning, to ascertaiufwhats knownv as the flash` ing=point ofsuchfoils;` and I'nave devised and ',arranged'rthesame with such simplicity that those off thcjgeneral public,v4 otherwise unskilled in suc-h experiment'and observation, can, with my method and ap# Vparatus,make thel test with a safety 'and accuracy .Iribase my invention on' thelfacts that all vapors given o by such nained'oils are combustible' ,at .the

i ytouch pf iiam'e, and `theyproduce, when so ignited,

fthe 4so`-cailed dashing l 1 ilnite the vapors from the oils, but only todis'engage Hence `it is ,unnecessary to em, and exhibit theltemperature at which they are the' unskilled -cannot with certainty'detect the rst 'ilashingtemperatur' of the oii by the use-oifanrm 4Iglence 1I .'colle'ct thelvapors 'at the "moment of gene# ration, iufaitignt receptacle; isolating Vnienrfrmn the .ar, andgso providing for the measurement of their l quantity,'1.and t the exact temperature. ofrftheir evolve-V "mengthatltlielexaet'knowledge of their existence' and y i voliitilityin' theoil-'isgained by any person of'ordinary n intell'gence, alidfthat without the fear of danger from Athefdirect application of tire,V

Idotherefore hereb `declare that'the following` is 'exact'description of my method and appas ya full and ratus'theiefori s fachamber to contain `the oil to be tested, mad-e of `transparent` glass, narrowf but deep, theV opening. of

lwhich, being" at` onev end, Vis capable 'ofbeing 'closed entirely bf'y tbe` nger; a vessel of tin' or other metal to vhold wann-sufficiently large to-admit the chamber of'g'lziss, when upright, in immersion; a. thermometer within,iandprotrudingfromsuch metal vessel to show at all times thetenl'perature of the water within it;

` and also of an outer vessel of tin to containthe aforementioned tin vessel to receiveheated or boiling water..

to raise the temperature of the inner vessel, and of the watertherein,` and consequentlyfof the glass chamber v withlthe oil immeisedin the yinner vessel, without thc' direct laction of tire, (bntlthe said outer vessel may be omitted, and `a lamp or re befn'sd to heat' the inner vessel directly, if ever that may seem more Ydesirable.)'

Mymethod of`testing oils with-this apparatus iss- First, to ill the inner' metal vessel with water at thefatmosphelic temperature nearly to its brim.v

l Secondly,`to'il -theglass-chamberfwithfthe oii tol e be' overflowing, and `then Ato: its aperture yby'r'ilacing afinger overthe same, sotigntlyunto'eir-v clude the air and hold inthe oil..- Then reverse' the chamber and immerse it, mouth downward, in the ivaterjn the said vessel; when the mouth is under 'water the finger vto, bel'removed, and the oil-.will not .iiow out;

,butthe chamber will remainabsolutely full, ofthe oil."v

I then note the. temperature ofthe water in sailj vessel by the thermometer placed thereimand proceedl to raise the temperature of thevessel and its contentsg.v qby pouring-heated water into thejouter' vessel vsur-5.

rounding the s ame, as before described, permitting'the:

heated water to flow away from the outer chamberjas,

it gives edits heat, and continuing to pour' fresh supf' plies, by which I am enabled to raise theter'riperature ,of the inclo'sedoil in anyratio of time prescribed for, oil tests, at my will.

V Whe'ntheinost volatile constituents ofthe oiifarrlvef; Lat the temperature of their disengagementaiid vola' stand 'over the oilperfectly apparent to the eye. At e the time of the rising of the'irst quantity thatheconies clearly apparent, the thermometer .will indicate the ltemperature of the true dashing pointlof that-oil,

and the bull;` of the vapor at any temperature exhibit, n

indicates truly the amount of vapors contained in such 4 .oil volatilizable from same at suchtemperature.

I can,`froin time to time, lift the chamber in 'thev water to note more accurately and to assist the vapor' in displacing the oil at the top, prbvided I keep itsmouth always submerged. The displaced oil, of course, 'flows out'into'the surrounding water.

To'enable others to ,construct my apparatusv to'eme n l pioymy method, I more fully describe the same, re- ;{lhe na'ture ofinyinveution consistsiu theuse of with a littleknob formed there to lift it Aby,tube tobe .about six inches in length and an inch orlessY in `diameter, the open end to be'"forin ed into a mouth or aperture of suchA size that it may be completely closed with the finger pressed uponv it. The lip at the month is extended 'on 'opposite sides sufficient-ly to ac tas a base toA stand upright upon when reversed, whileon 'tivo sides the lip' is depressed to admit the form of the fingerlaid in it, Vsothat thecontentsof the chamber mayaind: freeexit through these depressions when the chamber stands on its lip,as reversed and in operation;

When desired to measurethe quantity of vapor proff portioncd-to-the oil, I mark the chamber atinterval's of aliquot'partsonthe lass.

, I provides. tinvessel, ,furnishedwith a. thermoin- I eter, U, iixedor movable,ef such positiongand length that the'tempeiatures of the4 contents ofBmay be'.

easily perceived. f The size of Bl sh'onld be, in-width, suilicient to lm'- I merseA thereinivhen held perpendieulerl and vwith the nger rmly held to the aperture untihthat is f under the water.

' The depth of B should be sucient to immerse' eli of A. when-immersed and standiug'on its lip in B, ex-

.cepting, perhaps, one inch of A, which may protrude for observation. l y y I oonstruct around B :in outer vessel, also open at the top',-or n jacket of tin, D, giving n space of one of evolving and collecting vapors, except as to time nd public fears of safet l What I claim, und desire tosecure by Letters Patent as nay-invention, is

1, The vaporizing f hydrocarbon oils or fluids' linn. transparent close chamber, having its only vent sealed by water, in such manner that the vapors of such nuns will be asoma, new, and exhibited, and the I temperature of ashing point shown,'as described.

2, Chamber A, or its equivalent, in o'ornbinntion with vessely B, with its thermometer, as described, and for the purposes mentioned.

3. An outer vessel or jacket, D,- in c ombinationlwitb chamber A and vessel B, for thepnrposes mentioned.

In witness whereof I have signed my name in presenoeof twolwtnesses.

DEB WEYDE, M. D.

P. H. VA

Witnesses: y

`ADOLPH Om',

CARLOS Buil'rnnmnnn. 

